Eaton MPSC123HEAXXSW Magnum LV Power Breaker - 100 kA
Part Number: MPSC123HEAXXSW
Quick Summary
The Eaton Magnum low voltage power circuit breaker provides reliable protection for industrial power circuits in manufacturing and process plants. Downtime and coordination gaps between devices can drive costly outages when breakers are undersized or mis-specified. This unit carries CE marks and UL Listed certifications, plus CSA and NEMA compliance, helping you meet global safety and reliability requirements. Its 1200 A rating and 100 kA interrupting capacity, combined with fixed horizontal mounting and a standard frame, support efficient panel integration. For engineers seeking scalable protection with straightforward maintenance, this Magnum breaker delivers predictable performance and easier procurement through common Eaton catalogs.
Product Information
Extended Description
MPSC123HEAXXSW Eaton: Eaton Magnum low voltage power circuit breaker, Magnum PXR, Standard frame, 1200 A, 100 kA, Three-pole, Fixed horizontal mounting, No trip unit
Product Name
Eaton Magnum low voltage power circuit breaker
Catalog Number
MPSC123HEAXXSW
UPC
786689638016
Product Length/Depth
14.6 in
Product Height
16.8 in
Product Width
16.2 in
Product Weight
118 lb
Compliances
CE Marked NEMA Compliant SABA Listed CCC Marked
Certifications
ANSI CSA Certified UL Listed KEMA Certified Lloyd's Register Certified DNV GL Certified ABS Certified
Zone selective interlocking application paper
Magnum circuit breakers with Power Xpert Release trip units product aid
Selevctive coordination application paper - IA0120000E3
Magnum PXR and PD-SB double and double narrow frame UL Certificate of Compliance
Magnum PXR and PD-SB double and double narrow frame UL Certificate of Compliance
Microsoft Word - Power Xpert Protection Manager Quick Start Guide.docx
Microsoft Word - Power Xpert Protection Manager Quick Start Guide.docx
Microsoft Word - Power Xpert Protection Manager Quick Start Guide.docx
Circuit Protection, Power Breakers, Contactors and Fuses, Volume 4, Tab 3
Power Xpert Protection Manager x64 22.6 1
Power Xpert Protection Manager x64 22.6 1
Eaton Specification Sheet - MPSC123HEAXXSW
Eaton Specification Sheet - MPSC123HEAXXSW
Magnum low-voltage power circuit breakers (ANSI and IEC) renewal parts and accessories
Magnum PXR 20/25 electronic trip units time current curves
Molded case and low-voltage power circuit breaker health
Molded case and low-voltage power circuit breaker health
Molded case and low-voltage power circuit breaker health
Feature: 1200 A continuous current rating and 100 kA short-circuit current rating. Business impact: robust protection for high-demand feeders reduces fault-related downtime and extends equipment life. Application: motor feeders and critical process lines in heavy industry. Feature: Three-pole, standard-frame design. Business impact: simplifies replacement and compatibility across existing panels, lowering maintenance headaches. Application: control panels and MCCs in mixed-voltage environments. Feature: Fixed horizontal mounting with compact footprint (14.6 in L x 16.8 in H x 16.2 in W). Business impact: easier installation, faster commissioning, and optimized panel density. Application: new builds and retrofits in space-constrained enclosures. Feature: Comprehensive certifications (CE Marked, UL Listed, CSA Certified, NEMA Compliant). Business impact: accelerates global deployments and supplier qualification. Application: multinational facilities requiring validated electrical protection. Feature: No trip unit included (upgrade path to Power Xpert Release as needed). Business impact: cost-conscious initial buy with upgrade flexibility for selective coordination. Application: projects prioritizing phased protection upgrades in mature facilities.
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FAQs
The MPSC123HEAXXSW is a three-pole, standard-frame breaker designed for fixed horizontal mounting in typical low-voltage switchgear and control panels. With a 14.6 in length, 16.8 in height, and 16.2 in width, it fits common enclosure footprints and supports straightforward bolt-on installation. Ensure proper clearance and busbar alignment, referencing the Eaton installation guide and catalog sheets for panel adapter compatibility and torque specifications.
This model provides a 1200 A continuous current rating and a 100 kA short-circuit interrupting capacity, suitable for high-demand feeders and motor circuits. It is a three-pole device with fixed horizontal mounting and no trip unit included, making it ideal where a basic protection device is required now, with an upgrade path to a Power Xpert Release trip unit later for selective coordination and advanced protection monitoring.
Ideal for motor control centers, distribution panels, and critical process lines in manufacturing and heavy industries, this breaker offers robust protection against high fault currents. Its standardized frame and mounting simplify integration across diverse panel designs, while the 1200 A/100 kA ratings provide capacity for demanding applications common in steel, chemical, and food processing environments.
The MPSC123HEAXXSW carries CE Marked, UL Listed, CSA Certified certifications, and is NEMA compliant. It is also listed under additional certification programs referenced by Eaton, such as ANSI and SABA. These approvals support global deployment, regulatory compliance, and safer operation in multinational facilities.
Starting with a no-trip-unit configuration lowers initial cost, while keeping an upgrade path to Power Xpert Release trip units for selective coordination reduces future retrofit expenses. The well-documented part availability, common Eaton cataloging, and modular framing help minimize spare-parts inventory and downtime during maintenance, contributing to a favorable total cost of ownership over the equipment lifecycle.